With air filter off runs perfect, will air filter on it goes to hell. Any suggestions ?
Jetting?
I have a cobra pipe and uni filter stock everything else
With air filter off runs perfect, will air filter on it goes to hell. Any suggestions ?
Jetting?
I have a cobra pipe and uni filter stock everything else
go down on the M jet a lil bit try that
TT RACER
#23 2003 400ex
curtis sparks x-6
Dynojet Jet Kit
HotCam's Stage 1 Cam
Like what size would you say ?
Do you think that will solve the problem ?
what is your main jet at now?.....and when was the last time u cleaned the filter...if the filter is clogged all up that could cause a problem also
Jarret Stone#1x
250x
AIM: JJs3600
CLEAN THE FILTER!
Just been cleaned !
How can I determine which main jet is in there? sorry dont know these little things
u have to take the jet out the carb and it will say on the side
Jarret Stone#1x
250x
AIM: JJs3600
Ok thanks alot Ill pull it out and see what it is .
Then Ill check back with ya.
One more thing I dont know if this a problem but I pulled my plug out and its got a lot of black carbon on it ?????
Yeah that means it's too rich. On the bottom of the bowl there's a plug that comes out. Inside is the main jet. If you don't have a main jet wrench, you can use a 6mm socket. The size of the jet is printed on the side. Depending on your mods, you should run either a 122, 125, or 128, unless it's heavily modified.
what mods are done to it? cuz that can help decide if it rich or lean cuz my x is highly moded and im runnin a higher main jet that most pll do in their 400's. but i also have a aftermarket carb.
Jarret Stone#1x
250x
AIM: JJs3600